Coal-bearing source rocks formed in the transitional stage from faulting to depression nearshore China——A case from the Pinghu Formation in the Xihu Sag

DIAO Hui; LIU Jinshui; HOU Dujie; JIANG Yiming; ZHANG Tao; ZENG Wenqian

doi:10.16562/j.cnki.0256-1492.2019061403

Marine Geology & Quaternary Geology > 2019 > 39(6): 102-114. > DOI: 10.16562/j.cnki.0256-1492.2019061403

DIAO Hui, LIU Jinshui, HOU Dujie, JIANG Yiming, ZHANG Tao, ZENG Wenqian. Coal-bearing source rocks formed in the transitional stage from faulting to depression nearshore China——A case from the Pinghu Formation in the Xihu Sag[J]. Marine Geology & Quaternary Geology, 2019, 39(6): 102-114. DOI: 10.16562/j.cnki.0256-1492.2019061403

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Coal-bearing source rocks formed in the transitional stage from faulting to depression nearshore China——A case from the Pinghu Formation in the Xihu Sag

1.
Shanghai Branch Company of CNOOC (China) Ltd, Shanghai 200335, China
2.
School of Energy Resources, China University of Geosciences, Beijing 100083, China

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Received Date: June 13, 2019
Revised Date: August 07, 2019
Available Online: October 23, 2019

Graphical Abstract

Abstract

Abstract

The Xihu Sag is the most important oil-bearing sag in the East China Sea Continental Shelf Basin, in which prevailed the Late Eocene source rocks of the Pinghu Formation, which was formed while the sag was situated in a transitional stage from faulting to depression. The Pinghu Formation is a set of marine-continental transitional coal-bearing sequence deposited in a semi-enclosed depositional environment of a bay. The authors systematically studied the distribution pattern, source of parent material and hydrocarbon generation characteristics of the coal-bearing source rocks. The results show that the coal-series source rocks were distributed widely in the sag and formed in a faulting-depression transitional stage. They are rich in iso-seasones and wet fern-derived β-bentane, reflecting a source from dried coniferous gymnosperms, in which diterpenoids are characterized by an increase in β-flatane from the slope zone to the center of the depression. From the microstructure, it is a kind of resin-rich coal-based source rock, which generated oil in early stage but gas in late-stage. The distribution pattern of " Gas in the East and Oil in the West” in the Xihu Sag is also determined by the distribution pattern, parent material source and hydrocarbon generation characteristics of the source rocks.
- source rock,
- resinite,
- diterpanes,
- the Xihu Sag

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References (27)

References

[1]	刘道燕. 东海陆架盆地烃源岩及其烃类特点[M]∥姜亮. 东海陆架盆地油气资源勘探论文集. 北京: 石油工业出版社, 2004: 181-187. LIU Daoyan. Characteristics of Source Rocks and Their Hydrocarbns in East China Sea Continental Shelf Basin[M]∥JIANG Liang. Proceedings of Petroleum Resources Exploration in East China Sea Shelf Basin. Beijing: Petroleum Industry Press, 2004: 181-187.
[2]	蒋一鸣, 周倩羽, 李帅, 等. 西湖凹陷西部斜坡带平湖组含煤岩系沉积环境再思[J]. 中国煤炭地质, 2016, 28(8):18-25. [JIANG Yiming, ZHOU Qianyu, LI Shuai, et al. Reconsideration of Pinghu Formation coal-bearing rock series sedimentary environment in western slope of Xihu Depression [J]. Coal Geology of China, 2016, 28(8): 18-25. doi: 10.3969/j.issn.1674-1803.2016.08.04
[3]	熊斌辉, 王春红, 张锦伟, 等. 西湖凹陷古近系平湖组煤层分布及油气意义[J]. 海洋石油, 2007, 27(3):27-33, 40. [XIONG Binhui, WANG Chunhong, ZHANG Jinwei, et al. The distribution and exploration implications of coal beds of Pinghu Formation, Paleologene in Xihu Sag [J]. Offshore Oil, 2007, 27(3): 27-33, 40. doi: 10.3969/j.issn.1008-2336.2007.03.004
[4]	周倩羽, 沈文超, 张信, 等. 西湖凹陷古近系平湖组聚煤环境特征及模式[J]. 河北工程大学学报: 自然科学版, 2016, 33(1):105-107, 112. [ZHOU Qianyu, SHEN Wenchao, ZHANG Xin, et al. The coal-accumulating environments characteristics and coal-forming pattern of Pinghu Formation(Paleogene) in Xihu Depression [J]. Journal of Hebei University of Engineering: Natural Science Edition, 2016, 33(1): 105-107, 112.
[5]	李贤庆, 钟宁宁, 王铁冠, 等. 东海西湖凹陷早第三纪烃源岩生烃组分剖析[J]. 煤田地质与勘探, 1995, 23(6):24-31. [LI Xianqing, ZHONG Ningning, WANG Tieguan, et al. The study on hydrocarbon-generating macerals of Lower Tertiary source rocks in Xihu Sag, East China Sea Basin [J]. Coal Geology & Exploration, 1995, 23(6): 24-31.
[6]	傅宁. 东海盆地西湖凹陷煤系烃源岩及凝析油中的二萜化合物[J]. 中国海上油气(地质), 1994, 8(1):21-28. [FU Ning. Diterpenoid compounds in coal measures and condensates in Xihu Sag of East China Sea Basin [J]. China Offshore Oil and Gas (Geology), 1994, 8(1): 21-28.
[7]	朱杨明, 周洁, 顾圣啸, 等. 西湖凹陷始新统平湖组煤系烃源岩分子地球化学特征[J]. 石油学报, 2012, 33(1):32-39. [ZHU Yangming, ZHOU Jie, GU Shengxiao, et al. Molecular geochemistry of Eocene Pinghu Formation coal-bearing source rocks in the Xihu Depression, East China Sea Shelf Basin [J]. Acta Petrolei Sinica, 2012, 33(1): 32-39. doi: 10.7623/syxb201201004
[8]	陈斯忠, 宋建民, 陈伟煌. 对海上找气的思考[J]. 中国海上油气(地质), 2003, 17(3):153-159. [CHEN Sizhong, SONG Jianmin, CHEN Weihuang. Pondering upon offshore gas exploration in China [J]. China Offshore Oil and Gas (Geology), 2003, 17(3): 153-159.
[9]	周心怀, 蒋一鸣, 唐贤君. 西湖凹陷成盆背景、原型盆地演化及勘探启示[J]. 中国海上油气, 2019, 31(3):1-10. [ZHOU Xinhuai JIANG Yiming, TANG Xianjun. Tectonic setting, prototype basin evolution and exploration enlightenment Of Xihu Sag in East China Sea Basin [J]. China Offshore Oil and Gas, 2019, 31(3): 1-10.
[10]	叶加仁, 顾惠荣, 贾健谊. 东海西湖凹陷油气地质条件及其勘探潜力[J]. 海洋地质与第四纪地质, 2008, 28(4):111-116. [YE Jiaren, GU Huirong, JIA Jianyi. Petroleum geological condition and exploration potential of Xihu Depression, East China Sea [J]. Marine Geology & Quaternary Geology, 2008, 28(4): 111-116.
[11]	张建培, 徐发, 钟韬, 等. 东海陆架盆地西湖凹陷平湖组-花港组层序地层模式及沉积演化[J]. 海洋地质与第四纪地质, 2012, 32(1):35-41. [ZHANG Jianpei, XU Fa, ZHONG Tao, et al. Sequence stratigraphic models and sedimentary evolution of Pinghu and Huagang Formations in Xihu Trough [J]. Marine Geology & Quaternary Geology, 2012, 32(1): 35-41.
[12]	杨传胜, 杨长清, 李刚, 等. 东海陆架盆地中—新生界油气勘探研究进展与前景分析[J]. 海洋地质与第四纪地质, 2018, 38(2):136-147. [YANG Chuansheng, YANG Changqing, LI Gang, et al. Prospecting of Meso-cenozoic hydrocarbon in the East China Sea Shelf Basin [J]. Marine Geology & Quaternary Geology, 2018, 38(2): 136-147.
[13]	蔡佳, 祁鹏, 宋双. 东海盆地西湖凹陷花港组下段沉积相分析[J]. 海洋地质与第四纪地质, 2017, 37(2):56-65. [CAI Jia, QI Peng, SONG Shuang. Sedimentary facies of the lower Huagang Formation in Xihu Depression of Donghai Basin [J]. Marine Geology & Quaternary Geology, 2017, 37(2): 56-65.
[14]	周心怀, 高顺莉, 高伟中, 等. 东海陆架盆地西湖凹陷平北斜坡带海陆过渡型岩性油气藏形成与分布预测[J]. 中国石油勘探, 2019, 24(2):153-164. [ZHOU Xinhuai, GAO Shunli, GAO Weizhong, et al. Formation and distribution of marine-continental transitional lithologic reservoirs in Pingbei slope belt, Xihu Sag, East China Sea Shelf Basin [J]. China Petroleum Exploration, 2019, 24(2): 153-164.
[15]	秦兰芝, 徐志星, 刁慧, 等. 西湖凹陷烃源岩地震反演评价与预测[J]. 中国石油和化工标准与质量, 2017, 37(16):66-67, 69. [QIN Lanzhi, XU Zhixing, DIAO Hui, et al. Seismic inversion evaluation and prediction of source rocks in Xihu Sag [J]. China Petroleum and Chemical Standard and Quality, 2017, 37(16): 66-67, 69. doi: 10.3969/j.issn.1673-4076.2017.16.032
[16]	王铁冠, 钟宁宁, 侯读杰, 等. 低熟油气形成机理与分布[M]. 北京: 石油工业出版社, 1995: 175-181. WANG Tieguan, ZHONG Ningning, HOU Dujie, et al. Immature Oils Forming Mechanism and Distribution[M]. Beijing: Petroleum Industry Press, 1995: 175-181.
[17]	钱门辉, 侯读杰, 蒋启贵, 等. 西湖凹陷煤系烃源岩显微组分组成特征及地质意义[J]. 石油实验地质, 2012, 34(2):182-185. [QIAN Menhui, HOU Dujie, JIANG Qigui, et al. Features and geologic significance of maceral composition of coal-bearing source rocks in Xihu Sag [J]. Petroleum Geology & Experiment, 2012, 34(2): 182-185. doi: 10.3969/j.issn.1001-6112.2012.02.014
[18]	王铁冠, 钟宁宁, 候读杰, 等. 中国低熟油的几种成因机制[J]. 沉积学报, 1997, 15(2):75-83. [WANG Tieguan, ZHONG Ningning, HOU Dujie, et al. Several genetic mechanisms of immature crude oils in China [J]. Acta Sedimentologica Sinica, 1997, 15(2): 75-83.
[19]	李贤庆, 钟宁宁, 王铁冠, 等. 东海盆地西湖凹陷下第三系烃源岩显微组分组成和成烃组分剖析[J]. 中国海上油气(地质), 1995, 9(1):19-25. [LI Xianqing, ZHONG Ningning, WANG Tieguan, et al. The study on maceral composition and hydrocarbon-generating macerals of Lower Tertiary source rocks in Xihu Sag, East China Sea Basin [J]. China Offshore Oil and Gas (Geology), 1995, 9(1): 19-25.
[20]	李贤庆, 钟宁宁, 熊波, 等. 西湖凹陷煤系源岩的有机质热演化研究[J]. 中国煤田地质, 1997, 9(1):33-36. [LI Xianqing, ZHONG Ningning, XIONG Bo, et al. A study on thermal evolution of organic matter in coal-bearing source rocks of Xihu Sag [J]. Coal Geology of China, 1997, 9(1): 33-36.
[21]	仝志刚, 贺清, 何仕斌, 等. 东海西湖凹陷地温场及其对烃源岩的作用[J]. 石油实验地质, 2009, 31(5):466-471, 484. [TONG Zhigang, HE Qing, HE Shibin, et al. Geothermal field and its effect on source rock in the Xihu Sag, the East China Sea Basin [J]. Petroleum Geology & Experiment, 2009, 31(5): 466-471, 484. doi: 10.3969/j.issn.1001-6112.2009.05.006
[22]	何将启.东海西湖凹陷构造—热历史分析[D].上海: 同济大学, 2004: 92. HE Jiangqi. Tectono－thermal history of Xihu Depression, East China Sea[D]. Shanghai: Tongji University, 2004: 92.
[23]	刘景彦, 林畅松, 肖建新, 等. 东海西湖凹陷第三系主要不整合面的特征、剥蚀量的分布及其意义[J]. 现代地质, 1999, 13(4):432-438. [LIU Jingyan, LIN Changsong, XIAO Jianxin, et al. Characteristics and erosions of the major Tertiary unconformities and their significance to petroleum exploration in the Xihu Trough, the East China Sea [J]. Geoscience, 1999, 13(4): 432-438.
[24]	周祖翼, 贾健谊, 李家彪, 等. 东海西湖凹陷反转构造定量研究: 来自裂变径迹分析数据的约束[J]. 海洋地质与第四纪地质, 2002, 22(1):63-67. [ZHOU Zuyi, JIA Jianyi, LI Jiabiao, et al. Quantitative study on inversion structures in Xihu Depression, East China Sea: constraints from fission track analysis data [J]. Marine Geology & Quaternary Geology, 2002, 22(1): 63-67.
[25]	许婷, 侯读杰, 曹冰. 东海盆地西湖凹陷凝析油和轻质油生源母质剖析[J]. 地球化学, 2015, 44(3):289-300. [XU Ting, HOU Dujie, CAO Bing. Study of precursors for Condensates and light oils in Xihu Sag of East China Sea Basin [J]. Geochimica, 2015, 44(3): 289-300. doi: 10.3969/j.issn.0379-1726.2015.03.008
[26]	彼得斯 K E, 莫尔多万 J M. 生物标记化合物指南——古代沉积物和石油中分子化石的解释[M].北京: 石油工业出版社, 1995: 120-124. Peters K E, Moldowan J M. The Biomarker Guide[M]. Beijing: Petroleum Industry Press, 1995: 120-124.
[27]	侯读杰, 张林晔. 实用油气地球化学图鉴[M]. 北京: 石油工业出版社, 2003: 146-148. HOU Dujie, ZHANG Linye. Illustrated Handbook of Oil and Gas Geochemistry[M]. Beijing: Petroleum Industry Press, 2003: 146-148.

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